Popular history is like a polar ice shelf. It encases a certain figure, event or phenomenon in its deep freeze for ages; then, inexplicably, the surface cracks, and the glacier heaves it up: the presidency of John Adams! The invention of longitude! The history of cod!
Now, nearly 90 years after his failed 1914-16 effort to traverse Antarctica, British explorer Ernest Shackleton has become the hottest guy to battle icebergs since Leonardo DiCaprio. Caroline Alexander has published The Endurance: Shackleton's Legendary Antarctic Expedition; leadership tomes explicate the explorer's lessons for middle managers. PBS has just aired Shackleton's Voyage of Endurance, which...